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The acute angle formed between the lines...

The acute angle formed between the lines joining the origin to the points of intersection of the curves `x^2+y^2-2x-1=0` and `x+y=1`, is

A

(a) `tan^(-1)(-1/2)`

B

(b) `tan^(-1)2`

C

(c) `"tan"^(-1)1/2`

D

(d) `60^(@)`

Text Solution

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The correct Answer is:
B
NA
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